From 1dba38fb693c3d57bb3ba96bb007b2926d0e5e72 Mon Sep 17 00:00:00 2001
From: Shreyas Zare <shreyas@technitium.com>
Date: Sun, 29 Oct 2023 19:12:24 +0530
Subject: [PATCH] Extensions: implemented GetLocalIpAddress().

---
 DnsServerCore/Extensions.cs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/DnsServerCore/Extensions.cs b/DnsServerCore/Extensions.cs
index e3590a92..b2ebaf69 100644
--- a/DnsServerCore/Extensions.cs
+++ b/DnsServerCore/Extensions.cs
@@ -61,6 +61,25 @@ namespace DnsServerCore
             }
         }
 
+        public static IPAddress GetLocalIpAddress(this HttpContext context)
+        {
+            try
+            {
+                IPAddress localIP = context.Connection.LocalIpAddress;
+                if (localIP is null)
+                    return IPAddress.Any;
+
+                if (localIP.IsIPv4MappedToIPv6)
+                    localIP = localIP.MapToIPv4();
+
+                return localIP;
+            }
+            catch
+            {
+                return IPAddress.Any;
+            }
+        }
+
         public static UserSession GetCurrentSession(this HttpContext context)
         {
             if (context.Items["session"] is UserSession userSession)